Superconducting magnet and magnetic resonance imaging apparatus

Abstract

A superconducting magnet apparatus includes a superconducting coil, a structure, a refrigerant tank, a heat exchanger, a freezer, a solid heat conductor, and a vacuum container. The superconducting coil is formed of a superconducting wire that forms a magnetic field. The structure is formed of a superconductor and is electrically connected to the superconducting coil. The refrigerant tank stores a refrigerant. The heat exchanger is exposed to inside of the refrigerant tank. The freezer cools the refrigerant. The solid heat conductor makes direct or indirect thermal connection between the refrigerant tank and the superconducting coil and the structure. The superconducting coil or the structure is formed using at least two structures having different operation temperatures or superconducting characteristics for superconduction.

Dependencies are inferred from the claim text.